Here are some of the special hours, festivities and such that some local retailers will be presenting this Saturday.

Black Dog Records: Starting at 10 a.m., the venerable vinyl shop will celebrate its first RSD at its new location with select RSD titles and refreshments that will begin to flow at 3 p.m. 4900 Bissonnet, No. 102; 713-522-6001

Cactus Music: The store will open at 10 a.m. with select RSD titles. At 2 p.m., author David Ensminger will read from "Mojo Hand," the book he co-wrote about Lightnin' Hopkins; John Egan and the Mighty Orq also will perform. At 5 p.m. the Virginmarys will perform. There will be giveaways and drawings, including a Bowie print proof and a poster signed by most of the acts that have taken part in Cactus in-store performances in the past year. More than 2,000 hip-hop 12-inch recordings will be on sale at two for $1. Refreshments from Saint Arnold Brewery also will be served. At 7 p.m. Friday, Cactus will host a screening of "Last Shop Standing," a short film about independent record stores. 2110 Portsmouth; 713-526-9272.

Heights Vinyl: Doors will open at 11 a.m., giving customers extra time to visit other stores beforehand. In addition to RSD releases, the Tontons will perform at 1 p.m. and Come See My Dead Person will perform at 3 p.m. There will be giveaways, refreshments from Karbach Brewing Co. and a limited-edition "Weird Beard" screen print. 3122 White Oak; 281-974-1234.

Sig's Lagoon: In addition to RSD releases, the store - which received a formidable vinyl infusion from San Marcos' Sundance Records last year - will have food from around the 3600 and 3700 blocks of Main, and select local businesses will offer discounts with a Sig's receipt. 3622-E Main; 713-533-9525.

Vinal Edge: Having relocated to the Heights, the store will open at 9 a.m. (one hour early) and offer select RSD titles. Owner Chuck Roast also will be selling rare punk 45s from his personal collection from his "Funhouse Radio" show days. Singer Really Red also will be selling LPs from his collection. As for drink, Boomtown Coffee will provide some samples. 239 W. 19th; 281-537-2575.